Staking-machine.



Patented De'c. l9, I899. VAUGHN & F. J. PERKINS.

STAKING MACHINE.

(Application filed May 12, 1899.)

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N0. 639,3l9. Patented Dec. I9, I899.

I. VAUGHN 8:. F. J. PERKINS. STAKING MACHINE.

(Application filed May 12, 1899.)

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N0. 639,3I9. Patented Dec. l9, I899.

I. VAUGHN & F. J. PERKINS.

STAKING MACHINE.

(Application filed May 12, 1899.)

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l. VAUGHN 8. F. J. PERKINS.

STAKING MACHINE.

(Application filed May 12, 1899.)

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IRA VAUGHN, OF SALEM, AND FRANKLIN J. PERKINS, OF \VOBURN, MASSA-CHUSETTS, ASSIGNORS TO THE VAUGHN MACHINE COMPANY, OF PORT- LAND, MAINE.

S TAKING- IVIACHINE;

SPECIFICATION forming part of Letters Patent No. 639,319, dated December19, 1899. Application filed May 12, 1899. Serial No. 716,535. (Nomodel.)

T lU/wm it 'Z/ OOHOWH: ways, and having erected upon it at its op- Be itknown that we, IRA VAUGHN, residing posite sides two uprights j, betweenwhich in Salem, in the county of Essex, and FRANK- are pivotally mountedtwo tool-carrying le- LiN J. PERKINS, residing in IVoburn, in the versor arms 2 3, hereinafter referred to as V 5 county ofMiddlesex, State ofMassachusetts, the upper and lower arm or lever, respee- 5 citizens ofthe United States, have invented tively. an Improvement in StakingMachines, of In accordance with this invention the tool which thefollowing description, in connection carrying levers 2 3 are positivelyopened and with the accompan yin gdrawings, is a specificlosed, which iseffected, as herein shown, by

to cation, like letters and figures on the drawings a toggle mechanismcomprising links 4. 5, 6o representing like parts. pivotally connectedat one end to the levers This invention relates to a machine for 2 3 andhaving their other ends connected working hides, skins, or leather, andis esby a pin 6, joined by links 7 to one end of an pecially designedand adapted for use as a upright lever 8, mounted on a pivotpin O,

staking-machine. carried by depending brackets 10 of the car- 6 Theinvention has for one of its objects to riert'. (See Fig. 4.) Thepivot-pin 6 is supprovide a simple, efficient, and compact maported byupright links 1]. pivotally connectchine which takes up a minimum amountof ed at their lower ends to a block or plate 70, room and can thereforebe utilized in fac- (see Figs. 5 and 6,) which is adjustably setories inplaces where like machines as herecured to the carrier t' by a bolt 71,extended .70 tofore constructed and known to us cannot through a slot 72in the carrier, the head of be set up and operated owing to theirlength. the bolt moving between guiding ribs or lugs Another feature ofthis invention consists 7 3 on the under side of the carrier. The leverin providing a staking-machine in which the 8, as shown in Fig. 1,'isprovided atits lower 2 5 tool-carrying levers are positively opened andend with a stud or roller 12, extended into a 7 closed by a simple andefficient mechanism, cam-slot 13 in a plate, casting, or piece 14., aswill be described. (see dotted lines, Fig. 1, and full lines, Fig.

These and other features of this invention 7,) attached to the end of aeonnecting-rod will be pointed out in the claims at the end 15, joininga stud or pin 16 on an arm 17, de-

3c of this specification. pending from the carrier t',with a stud or pinFigure 1 is a side elevation of a machine 18 on a fly-wheel or disk 19.The cam-plate embodying this invention; Fig. 2, an end 14: may bedetachably secured to the end of elevation of the machine looking towardthe the connecting-rod 15, as by screws 20. g (Inleft in Fig. 1, withparts in section; Fig. 3, dicated by dotted lines, Fig. 1, and fulllines,

5 a modification on an enlarged scale, to be re- Fig.7.) The disk orwheel 19, in accordance ferred to; Fig. 4:, an end elevation of the withthis invention, isfast on a shaft 2l,havupper partof the machine lookingtoward the ing bearings in the framework at the front of right in Fig.1; Fig. 5, a sectional detail on the machine and below the tablefiandthe said the line 5, Fig. 1; Fig. 6, a sectional detail shaft hasfast on it a pulley 22, connected by 0 on the line 6 6, Fig. .5; andFig. 7, a sectional a belt 23 with apulley24 of the main or drivingdetail on the line 7 7, Fig. 2. shaft 25, located at the opposite end ofthe ma- The framework of the machine herein shown chine. B y thisconstruction and arrangement comprises a base a and side uprights h c,sepof parts the machine is materially shortened arated from each otherand having secured and is thereby made available for use inclose 45 totheir front ends brackets 61 e, which supquarters, where machines ofthis class as now 5 port the two parts of a table f, connected atcommonly constructed could not be used on their front end by a breastbeam or bar g. account of their length; and, furthermore, a The sidesupports 1) 0 support in suitable large number of machines embodyingthisinguideways h a movable support orcarrier 2', vention may be set upand operated in a 50 adapted to be reeiprocated in the saidguidesmall-sized room, thereby economizing in too floor-space andincreasing the capacity of the tannery for the work to which thesemachines are put.

The cam-slot 13 is made, as shown in the drawings, so as to positivelymove the lever 8 in opposite. directions, and thereby positively openand close the front ends of the levers or arms 2 3, which ends areprovided with suitable staking-tools, herein shown as a roll 30, carriedby the upper arm, and two blades 31 32, carried by the lower arm. Theroll 30 may be of rubber and is journaled in brackets 33, attached to aslide-plate 34, movable in guides 35, attached to the under side of thelever 2. The slide-plate 34 may be moved to adjust the roll relativelyto the blades 31 32 by a screw 36.

In the operation of the machine herein shown the carrier z' isreciprocated in the guideways h by the disk 19 through theconnecting-rod 15 and depending arm 17, and during the forward movementof the carrier in the direction indicated by arrow 200, Fig. 1, thecam-slot 13 opens the jaws or levers 2 3, and during the back stroke ormovement of the carrier the said cam-slot closes the said jaws or leversto effect the staking of the leather. The positive closing of the jawsor levers by the cam-slot may be assisted by a spring 40, which iscompressed when the jaws or levers are opened and expands when they areclosed.

In Fig. 1 we have represented the stud or roller 12 as attached to thelever 8 and the cam-plate 14: to the connecting-rod; but thisconstruction may be reversed, if desired, as shown in Fig. 3, whereinthe cam-slot 13 is formed in a plate or enlargement of the lever 8, andthe stud or roller 12 is carried by an arm 45, attached to theconnecting-rod 15.

The main shaft 25 may be driven in any suitable or usual manner, but inthe present instance is shown as provided with a friction drivingmechanism comprising a pulley 50, loose on the shaft 25 and continuouslydriven by a belt. (Not shown.) The pulley 50 has cooperating with it adisk or pulley 51, keyed on the shaft 50and movable thereon in oppositedirections by a lever 52, pivoted at 53, and having its upper endprovided with a threaded opening, into which extends the threaded end ofa shaft 54, provided with a gear 55, which is engaged by a segmentalgear 56, attached to a lever 57, operated by a shipperrod 58, extendedtoward the front of the machine and supported by a hanger or bracket 59,depending from the table f. (See Fig. 1) The link 4 of the togglemechanism is preferably made adjustable or extensible, so as toaccurately position the roll 30 with relation to the blades 31 32 whenthe levers 2 3 are in their closed position. The lower lever 3, asshown, has attached to it an auxiliary table or support for the leather.

The lower jaw 3 may be adjusted so as to properly position the workingtools 31 32 with relation to the table f by moving the block 7 O thatthe two links at 5 are straight.

longitudinally on the carrier, so that the perpendicular distance fromthe center pin 6 to the carrier maybe varied,according to whether it isdesired to raise or lower the front end of the lower jaw-carrying lever3. By moving the slide backward or toward the left (viewing Fig. 1) onthe table or carrier t' the point 6 is lowered when the toggle isoperated, so Then the point 6 is raised and the front end of the lever 3is lowered. The slot 72 in the carriert is made of sufficient length toenable the lower end of the links 11 to be carried forward a sufficientdistance to throw the center point 6 to the left of the vertical linewhen the toggle-links 4 5 are in their straightened position, whichmovement would elevate the front end of the lever 3. In this manner, bymeans of the block 70, the tools carried by the lowerjaw or lever 3 canbe accurately positioned with relation to the table.

1. In a machine of the class described, the combination of the followinginstrumentalities, viz: a framework, a reciprocating carrier mountedthereon and provided with an arm depending from said carrier,tool-carrying arms carried by said carrier, a rotatable crank disk orwheel located at the front end of the machine, a connecting-rod joiningsaid disk or wheel with said depending arm,a main or driv ing shaftlocated at the rear of the said crank disk or wheel, and means tooperate said crank disk or wheel from said driving-shaft, for thepurpose specified.

2. In a machine of the class described, the combination of the followinginstrumentalities, viz: a reciprocating carrier, tool-carrying armspivoted on said carrier, a rotatable disk or wheel, a connecting-rodjoining the said disk or wheel to said carrier to produce reciprocationof the same, and means to positively open and close said tool-carryingarms comprising a lever, toggle mechanism joining said lever to saidtool-carrying arms, and a cam-slot and stud intermediate of said leverand connecting-rod and actuated by the latter to move the lever on itspivot and positively open and close the tool-carrying levers,-substantially as described.

In a machine of the class described, the combination of the followinginstrumentalities, viz: aframework, a reciprocating carrier mountedthereon and provided with a depending arm, a rotatable disk or wheelconnected to the depending arm of said carrier to reciprocate the sameand located at one end of the machine, tool-carryin g arms or leverspivoted on said carrier, means to operate them, and a driving-shaftlocated at the end of the machine opposite to the said disk or wheel,and means to rotate said disk or wheel from said driving-shaft,substantially as and for the purpose specified.

4. In a machine of the class described, the combination of the followinginstrumentalities, viz: a framework provided with a table at its frontend, a reciprocating carrier mounted on said framework, an arm dependingfrom said carrier, a disk or wheel mounted on a shaft having bearings inthe framework at the front end of the machine below said table, aconnecting-rod joining said depending arm with said disk or wheel,tool-carrying levers or arms pivoted to said carrier, means actuated bysaid connecting-rod to operate said levers, a main or driving shafthaving bearings in the framework at the rear of the shaft on which saiddisk or wheel is mounted, and means to connect the said shafts, for thepurpose specified.

5. In a machine of the class described, the combination of the followinginstrumentalities, viz: a reciprocating carrier, tool-carrying armspivoted on said carrier, toggle-levers connected to said arms, a blockor piece adjustable on said carrier, a link connection between saidblock and the pivot of said toggle levers, a cam to operate saidtoggle-levers and a disk or wheel to operate said cam, substantially asdescribed.

6. In a machine of the class described, the

In testimony whereof we have signed our names to this specification inthe presence of two subscribing witnesses.

IRA VAUGHN. FRANKLIN J. PERKINS.

Vitnesses:

I he H. CHURCHILL,

J. MURPHY.

